Alert archive / Minnesota / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 221
The Storm Prediction Center issued this severe thunderstorm watch at May 19, 2004, 8:00 PM CDT for 34 counties in Minnesota; Richland County, North Dakota; 12 counties in South Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 19, 2004, 8:00 PM CDT (01:00 UTC)
- Expired
- May 20, 2004, 1:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 47 counties
Becker County, MN, Beltrami County, MN, Big Stone County, MN, Cass County, MN, Chippewa County, MN, Clay County, MN, Clearwater County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Kandiyohi County, MN, Koochiching County, MN, Lac qui Parle County, MN, Lake of the Woods County, MN, Lincoln County, MN, Lyon County, MN, Mahnomen County, MN, Marshall County, MN, Murray County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Pipestone County, MN, Polk County, MN, Pope County, MN, Red Lake County, MN, Roseau County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Yellow Medicine County, MN, Richland County, ND, Brookings County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Kingsbury County, SD, Lake County, SD, Miner County, SD, Moody County, SD, Roberts County, SD
The radar
The Aberdeen radar (KABR), 171 km from the middle of the area, began a volume at 01:04 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Warnings issued inside it
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 8:15 PM CDT | Severe Thunderstorm Warning | FGF | Red Lake | 60 min |
| May 19, 8:44 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 61 min |
| May 19, 9:28 PM CDT | Severe Thunderstorm Warning | FGF | Pennington, Red Lake | 47 min |
| May 19, 10:03 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami | 42 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 1.0 hours before the alert went out and 198 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1154 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1128 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- -64 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- -0.7
- Supercell composite
- -4.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 7:12 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Dakota, Faribault, Fillmore, Goodhue, Martin and 8 more | 2 hr |
| May 19, 7:31 PM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Benton, Big Stone, Brown, Carver and 46 more | 119 min |
Nearby
Severe Thunderstorm Watches in Minnesota, 2004Severe Thunderstorm Watches in South Dakota, 2004Severe Thunderstorm Watches in North Dakota, 2004Every severe thunderstorm watch in 2004
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.